// 颜色变量
$primary-color: #667eea;
$secondary-color: #764ba2;
$text-dark: #333;
$text-light: #666;
$white: #fff;
$gray-bg: #f8f9fa;
$black: #000;

// 尺寸变量
$nav-height: 70px;
$border-radius: 12px;
$container-max-width: 1200px;

// 阴影
$shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
$shadow-hover: 0 10px 20px rgba(0, 0, 0, 0.15);

// 间距
$section-padding: 5rem 0;
$container-padding: 0 20px;

// 动画时长
$transition-duration: 0.3s;
$transition-ease: ease;

// 断点
$breakpoint-mobile: 768px;
$breakpoint-tablet: 1024px;
$breakpoint-desktop: 1200px; 